What Is My Current Cash Flow? Assess whether you are running “in the black” or “in the red” each month. You are viewing this website at a small screen resolution which doesn't support calculators. Click here to view this calculator. Have A Question About This Topic? Name Email Address Question Thank you! Oops! Related Content Pay Yourself First It sounds simple, but paying yourself first can really pay off. Federal Income Tax Use this calculator to estimate your income tax liability along with average and marginal tax rates. Capital Gains Tax Estimator Use this calculator to estimate your capital gains tax.